TypeScript - Union TypeScript - Literal Types TypeScript - Symbols TypeScript - null vs. undefined TypeScript - Type Aliases TypeScript Control Flow TypeScript - Decision Making TypeScript - If Statement TypeScript - If Else Statement TypeScript - Nested If Statements TypeScript - Switch Statemen...
The Typescript switch is one of the features, and it is a statement used to check the multiple values, and it will execute the same multiple set of statements; the switch is a single level block code corresponding to each value, and it executes the first case clause whose the values is ...
The switch statement in TypeScript is used to check for multiple values and execute sets of statements for each of those values.
参考: https://stackoverflow.com/questions/40627277/typescript-type-safety-in-switch-case-statements
You can use theswitchstatement with variables of typeint,byte,short,char(note thatlongdoes not work),String, or an enum (orenumeration typeas they are formally called). Here’s how it works: switch(<variable>){case<value>:// statementsbreak;case<other-value>:// statementsbreak;case<more...
For expressivity I don't always include a default case in my switch statements. But I know that variable abc below cannot be any value other than a, b and c. Thus, I think the below code should not error, because I return the correct typ...
Switchr provides a simple, clean, and flexible alternative to switch statements.Installationnpm install switchrUsageMethodsGet Set Has ListBasic Usageconst basicSwitchr = switchr({ foo: 'foo foo', buzz: (str) => { return 'buzz buzz ' + str; }, default: 'foobarbuzz' }); basicSwitchr....
This TypeScript library provides a utility function condSwitch for performing switch-like operations based on conditions with associated values. The condSwitch function is convenient to use in arrow functions, JSX, and other situations where if or switch statements are cumbersome or not allowed. Insta...
noFallthroughCasesInSwitch To further check logic errors in our code, we can use the noFallthroughCasesInSwitch compile option to check Switch statements. Consider the following code: enum SwitchEnum { ONE, TWO } … - Selection from Mastering TypeScript
Switch statement can be used to replace theif...else if statementin C#. The advantage of using switch over if...else if statement is the codes will look much cleaner and readable with switch. The syntax of switch statement is: switch (variable/expression) { case value1: // Statements ex...